Druid uses quite a few libraries - upgrading a single more important dependency might drag the version of that artifact up - however almost all libraries have transitive dependencies which should also be upgraded.

#18990 have configured the enforcer to enable requireUpperBoundDeps; which means that version inconsistencies will result in an error - however it needed a lot of exclusions as its being violated by quite a few dependencies.

Eventually it would be nice to remove all these exclusions.